CN203056679U - Implementation of dual power supply automatic switching system by logic controller - Google Patents
Implementation of dual power supply automatic switching system by logic controller Download PDFInfo
- Publication number
- CN203056679U CN203056679U CN 201320003569 CN201320003569U CN203056679U CN 203056679 U CN203056679 U CN 203056679U CN 201320003569 CN201320003569 CN 201320003569 CN 201320003569 U CN201320003569 U CN 201320003569U CN 203056679 U CN203056679 U CN 203056679U
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- CN
- China
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- circuit breaker
- universal circuit
- logic controller
- inlet wire
- lead
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Abstract
The utility model relates to the implementation of dual power supply automatic switching system by a logic controller. The technical scheme is characterized in that: a first stage lead-in universal circuit breaker QF1 is coupled with a bus coupler universal circuit breaker QF3 through a bus; the bus coupler universal circuit breaker QF3 is coupled with a second stage lead-in universal circuit breaker QF2 through a bus; a voltage relay KV1 is connected with the first stage lead-in universal circuit breaker QF1 through a lead; the voltage relay KV2 is connected with the second stage lead-in universal circuit breaker QF2 through a lead; and the logic controller is respectively coupled with the first stage lead-in universal circuit breaker QF1, the second stage lead-in universal circuit breaker QF2, the bus coupler universal circuit breaker QF3, the voltage relay KV1 and the voltage relay KV2 through leads. The logic controller is an intelligent relay suitable for small-scale automation control, can replace the intermediate relay, time relay and other components, and has the advantages of being convenient and flexible in application, reducing the wiring, saving installation space, and carrying out infinite extension.
Description
Technical field
The present invention relates to electrical control field and logic controller field, namely realize the duplicate supply automatic switchover system with logic controller.
Background technology
The duplicate supply automatic switchover system fault point that traditional hard contact connects is many and unstable, and the price of complete duplicate supply automatic switchover system is very expensive.
Summary of the invention
The objective of the invention is to solve the problem that prior art exists, provide a kind of and realize the duplicate supply automatic switchover system with logic controller, safety, reliable and stable.
Technical scheme of the present invention: realize the duplicate supply automatic switchover system with logic controller, it is characterized in that: one section inlet wire universal circuit breaker QF1 connects by bus with female connection universal circuit breaker QF3; Female connection universal circuit breaker QF3 connects by bus with two sections inlet wire universal circuit breaker QF2; Voltage relay KV1 links to each other by lead with one section inlet wire universal circuit breaker QF1; Voltage relay KV2 connects by lead with two sections inlet wire universal circuit breaker QF2; Logic controller connects by lead respectively with one section inlet wire universal circuit breaker QF1, two sections inlet wire universal circuit breaker QF2, female connection universal circuit breaker QF3, voltage relay KV1, voltage relay KV2.
The present invention with logic controller realize the duplicate supply automatic switchover system compared with prior art advantage be: logic controller is a kind of intelligent relay that is applicable to small automatic control, it can replace elements such as auxiliary relay, the time relay, has flexible, minimizing wiring easy to use, save installing space, safe and reliable, as to carry out infinite expanding advantage.
Action principle of the present invention: realize the duplicate supply automatic switchover system with logic controller, with logic controller as judging and the logic control center, according to the various signals that collect, according to the program finished in advance, control two inlet wires and bus separating brake and combined floodgate.Control principle is: after one section power supply had a power failure, this section of automatic disconnection lead-in circuit breaker also closed a floodgate bus; Behind the section power up that has a power failure, if select runback then disjunction bus and the lead-in circuit breaker that closes a floodgate automatically, if select not runback then logic controller is not given an order, needing manually could disjunction bus and combined floodgate lead-in circuit breaker.Use voltage relay as judging whether normal components and parts of supply voltage, use universal circuit breaker fault output contact is as judging the whether foundation of fault of circuit.The power supply of this device is taken from the inlet wire side of two sections lead-in circuit breakers, utilizes 1 auxiliary relay, realizes that as long as two sections power supplys have electricity for arbitrary section, then the dual power supply automatic switching device of realizing with logic controller just has electricity, and two sections power supplys are interacted.
Description of drawings
Fig. 1 for the invention structural representation Fig. 1.
Fig. 2 is flow chart of the present invention.
Among the figure, 1-section inlet wire universal circuit breaker QF1; 2-two sections inlet wire universal circuit breaker QF2,3-female connection universal circuit breaker QF3; 4-voltage relay KV1; 5-voltage relay KV2,6-logic controller.
Embodiment
Referring to Fig. 1, realize the duplicate supply automatic switchover system with logic controller, it is characterized in that: one section inlet wire universal circuit breaker QF11 connects by bus with female universal circuit breaker QF3 3 of joining; Female connection universal circuit breaker QF33 connects by bus with two sections inlet wire universal circuit breaker QF22; Voltage relay KV14 links to each other by lead with one section inlet wire universal circuit breaker QF11; Voltage relay KV25 connects by lead with two sections inlet wire universal circuit breaker QF22; Logic controller 6 connects by lead respectively with one section inlet wire universal circuit breaker QF11, two sections inlet wire universal circuit breaker QF22, female connection universal circuit breaker QF33, voltage relay KV14, voltage relay KV25.
Below flow chart is done with brief description: after logic controller gets electric initialization, at first judge by voltage relay KV1 and voltage relay KV2 whether one section inlet wire universal circuit breaker QF1 and two sections inlet wire universal circuit breaker QF2 have, if one section inlet wire universal circuit breaker QF1 and two sections inlet wire universal circuit breaker QF2 have electricity, then one section inlet wire universal circuit breaker QF1 and two sections inlet wire universal circuit breaker QF2 are sent the order of closing a floodgate.After one section inlet wire universal circuit breaker QF1 and two sections inlet wire universal circuit breaker QF2 close a floodgate, if this moment, logic controller detected one section inlet wire universal circuit breaker QF1 or two sections inlet wire universal circuit breaker QF2 power failures by voltage relay KV1 or voltage relay KV2, make one section inlet wire universal circuit breaker QF1 or two sections inlet wire universal circuit breaker QF2 separating brakes earlier, female connection universal circuit breaker QF3 is closed a floodgate.If one section inlet wire universal circuit breaker QF1 and two sections inlet wire universal circuit breaker QF2 do not have electricity, then logic controller does not send any order.Two sections inlet wire universal circuit breaker QF2 do not have electricity if one section inlet wire universal circuit breaker QF1 has electricity, and then logic controller sends the order of closing a floodgate to one section inlet wire universal circuit breaker QF1 and female connection universal circuit breaker QF3.One section inlet wire universal circuit breaker QF1 does not have electricity if two sections inlet wire universal circuit breaker QF2 have electricity, and then logic controller sends the order of closing a floodgate to two sections inlet wire universal circuit breaker QF2 and female connection universal circuit breaker QF3.
Claims (1)
1. realize the duplicate supply automatic switchover system with logic controller, it is characterized in that: one section inlet wire universal circuit breaker QF1 connects by bus with female connection universal circuit breaker QF3; Female connection universal circuit breaker QF3 connects by bus with two sections inlet wire universal circuit breaker QF2; Voltage relay KV1 links to each other by lead with one section inlet wire universal circuit breaker QF1; Voltage relay KV2 connects by lead with two sections inlet wire universal circuit breaker QF2; Logic controller connects by lead respectively with one section inlet wire universal circuit breaker QF1, two sections inlet wire universal circuit breaker QF2, female connection universal circuit breaker QF3, voltage relay KV1, voltage relay KV2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320003569 CN203056679U (en) | 2013-01-06 | 2013-01-06 | Implementation of dual power supply automatic switching system by logic controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320003569 CN203056679U (en) | 2013-01-06 | 2013-01-06 | Implementation of dual power supply automatic switching system by logic controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203056679U true CN203056679U (en) | 2013-07-10 |
Family
ID=48739598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320003569 Expired - Fee Related CN203056679U (en) | 2013-01-06 | 2013-01-06 | Implementation of dual power supply automatic switching system by logic controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203056679U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659904A (en) * | 2015-03-20 | 2015-05-27 | 山东钢铁股份有限公司 | Spare power automatic switching method, device and system |
-
2013
- 2013-01-06 CN CN 201320003569 patent/CN203056679U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659904A (en) * | 2015-03-20 | 2015-05-27 | 山东钢铁股份有限公司 | Spare power automatic switching method, device and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20190106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |